From vinylsilanes to organic/inorganic hybrid materials*
Tien-Yau Luh
Department of Chemistry and Institute of Polymer Science and Engineering, National Taiwan University, Taipei 106, Taiwan
Abstract: Alternating regioregular silylene-spaced divinylarene copolymers [(donor-SiMe2-)n=1-3-(acceptor-SiMe2)] are synthesized by rhodium-catalyzed hydrosilylation of bis-alkynes with bisvinylic silyl hydrides. Efficient intrachain energy transfer has been observed in these copolymers. The intensities of emission profiles depend on the relative ratio of donor-to-acceptor chromophores. The corresponding inorganic/organic hybrid materials are synthesized, and their photophysical properties are described.
Keywords: Vinylsilanes; rhodium-catalyzed hydrosilylation; energy transfer; stereoselective synthesis; light harvesting; photovoltaic applications.
*Paper based on a presentation at the 7th IUPAC International Conference on Heteroatom Chemistry (ICHAC-7), Shanghai, China, 21-25 August 2004. Other presentations are published in this issue, pp. 1985-2132.